I think over the last 5 years they may be walking a fine line between good growth and overplaying their hand. I just hope it's sustainable. In League One there are currently (from non-heartland areas):
- Gloucestershire
- Coventry
- Hemel
- Crusaders
- Scorpions
- Skolars
- Newcastle
- Oxford
That's the majority of the league! To be fair, some are quite well established now and seem to be built upon fairl strong foundations (like Newcastle for example). But I think the next few seasons will be critical for some of these team and whether or not they can survive long-term. There should certainly be no more expansion for the next 3-4 years minimum, so they can consolidate.
I would say that Crusaders bottomed out after the financial crisis in their SL days, to me they look sustainable now and would not be surprised to see them in the chamionship next season. The growth of the amateur and junior game in wales should give them enough talent to be sustainable and competitive in the second tier at least.
I am thinking that a fourth tier below league one is necessary, the most sustainable structure for the game in the UK i can see is 4 divisions of 10 teams each or 3 divisions but the third tier being split to have east and west. The key which they really need to do now anyway is have the central funding grants large enough to sustain and at least make the top 2 divisions fully pro.
Going roughly off the current leagues
Super league (10 teams)- Wigan, Wire, Leeds, Saints, Hull FC, Hull KR, Widnes, Catalans, Huddersfield, Salford
Championship (10 teams)- Wakey, Cas, Fev, Leigh, Bradford, london, dewsbury, halifax, Toulouse, sheffield
League 1 East (10 teams)- Hunslet, Keighly, Doncaster, York, Newcastle, hemel, Skolars, Coventry Oxford, Batley
League 1 West (9 teams)- Workington, Whitehaven, Barrow, Oldham, Rochdale, Swinton, Gloucester, South wales, North wales
I would have the league 1 east and west winners playoff for the right to promotion to the championship, while have 2 up and 2 down between SL and the championship.
Lack of games will be the call by chairmen up and down the land so to compensate have a new cup competition combining the top two divisions in randomly drawn groups champions league style into a knockout stage (4 groups of 5?). Should give all up 26 games + finals + challenge cup